Theosis Academy
Learn about the One, Holy, Catholic, and Apostolic Church by the Light of the East.
Learn from prominent scholars, such as Metropolitan Kallistos of Diokleia, Archimandrite Robert Taft, SJ, and many other leading theologians of both the Eastern and Western Churches.
Catholic & Orthodox
In Pursuit of Truth
Orthodox & Catholic
In Pursuit of Unity
Study with
Metropolitan ☩Kallistos of Diokleia
For over a decade, the Orientale Lumen Foundation had worked with Metropolitan Kallistos of Diokleia of blessed memory to record his Oxford lectures in an accessible format.
Subscribe for Course Updates and New Material
Study with
Archimandrite
☩Robert Taft, SJ
For over a decade, the Orientale Lumen Foundation had worked with Archimandrite Robert Taft, SJ of blessed memory to record his Pontifical Oriental Institute lectures in an accessible format.
Earn A Certificate
Follow our specialized curriculums for certificates in Eastern Spirituality, Patristics, Liturgy, and more!
How to use one of our courses?
For personal enrichment, group learning, or for class!
Live Courses
Join our instructors for a live online class each week. Participating in a live course allows you to submit your questions to be answered by the professors and engage with other students.
OnDemand
Learn at your own pace with our on-demand course option. You can re-watch the same lecture as often as you like by watching it on-demand. By independently studying, you can become a lifelong learner, taking one course or several.
Group Options
Consider adding Theosis Academy to your own classroom. By using one of our courses, you can combine your own expertise with that of a renowned scholar. Or consider adding one of our courses to be your next local bible study.